EP0737056A1 - Corps absorbant integre dans un article absorbant - Google Patents

Corps absorbant integre dans un article absorbant

Info

Publication number
EP0737056A1
EP0737056A1 EP95905285A EP95905285A EP0737056A1 EP 0737056 A1 EP0737056 A1 EP 0737056A1 EP 95905285 A EP95905285 A EP 95905285A EP 95905285 A EP95905285 A EP 95905285A EP 0737056 A1 EP0737056 A1 EP 0737056A1
Authority
EP
European Patent Office
Prior art keywords
liquid
absorbent body
body according
absorbent
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95905285A
Other languages
German (de)
English (en)
Other versions
EP0737056B2 (fr
EP0737056B1 (fr
Inventor
Ted Guidotti
Christina Steger
Urban Widlund
Eje Österdahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essity Hygiene and Health AB
Original Assignee
Molnlycke Vafveri AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20392246&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0737056(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Molnlycke Vafveri AB filed Critical Molnlycke Vafveri AB
Publication of EP0737056A1 publication Critical patent/EP0737056A1/fr
Application granted granted Critical
Publication of EP0737056B1 publication Critical patent/EP0737056B1/fr
Publication of EP0737056B2 publication Critical patent/EP0737056B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53743—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/5376—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15422—Density
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15487—Capillary properties, e.g. wicking
    • A61F2013/15495—Capillary properties, e.g. wicking pore dimension
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
    • A61F2013/53778—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with grooves

Definitions

  • the present invention relates to an absorbent body in an absorbent product, such as a diaper, incontinence pad, sanitary napkin or the like and comprises a fluid acquisition portion and a fluid storage portion adjacent thereto.
  • An absorbent body for absorbent products such as dis- posable diapers, incontinence protectors and sanitary napkins is usually constructed of one or more layers of hydrophilic fibres, e.g. cellulose fluff.
  • hydrophilic fibres e.g. cellulose fluff.
  • so-called superabsorbents are often included, which are polymers with the capacity to absorb many times their own weight in water or bodily fluid.
  • additional components can sometimes be included in the absorbent body in order to improve, for example, its fluid spread ⁇ ing properties or to increase its coherence and ability to resist deformation during use.
  • Another problem is keeping the surface facing the user as dry as possible during the entire use and preventing so-called re-wetting, i.e. that already absorbed fluid is pressed back out of the absorbent body and wets the skin of the user or gives rise to leakage.
  • this re-wetting problems are alleviated if the absorbent body contains superabsorbents, which chemically bond the absorbed fluid even when the product has been subjected to external pressure, for example when the user sits down.
  • One difficulty is, however, to design the absorbent body in such a way that the fluid is spread from the wetting area to unused portions of the absorbent body.
  • an absorbent body comprising at least two different cellulose fluffs, the fibre structure in the first absorbent layer substantially consisting of a first type of fluff with an open fibre structure and low liquid dispersability, for example a cellulose fluff made chemo- thermal mechanically, and a fibre structure in the other absorbent layer essentially consisting of a second type of fluff with higher liquid dispersability than the fluff in the first absorbent layer, for example a chemically produced fluff.
  • the first layer can, by virtue of its open fibre structure, house much liquid between the fibres and therefore can receive large amounts of liquid during a short period of time, i.e. it has a high moment- aneous liquid absorbtion capacity.
  • EP-A-0,254,476 discloses an absorbent body, which in one zone essentially in front of the wetting area, has a lower surface weight and a lower density than the surrounding portions of the absorbent body. This provides an area with high momentaneous liquid absorption capacity, whereafter the liquid can be dispersed and stored in the surrounding areas of the absorbent body.
  • GB-A-2,082,643 describes an absorbent body with an essential uniform surface weight but with a density gradient in the longitudinal direction, so that the density increases towards the short sides of the absorbent body. This provides rapid liquid admittance in the central portion of the absorbent body out towards the more compressed end portions.
  • US-A-4,413,996 describes an absorbent body for a diaper having a liquid absorbing depression or well in the wetting area. In this well, a porous batt can possibly be arranged.
  • the purpose and essential features of the invention is to provide an absorbent body of the type described by way of intro ⁇ duction, which fulfills the goals, i.e. which can rapidly receive large quantities of liquid even upon repeated wetting, and disperse the liquid by wicking towards the unused portions of the absorbent body, and which also has a high surface dryness.
  • said liquid acquisition portion com ⁇ prises at least one well located at the assumed wetting area of the absorbent body and extending depthwise into and through the liquid storage portion and is in liquid communication with a wicking layer arranged under the liquid storage layer, and in that in the liquid acquisi ⁇ tion portion, there is arranged a first absorbent struc ⁇ ture, which has a first effective mean pore size, and that in the liquid storage portion, there is arranged a second absorbent structure which has a second effective mean pore size which is less than the first mean pore size.
  • Fig. 1 shows a plan view of a diaper as seen from the side facing the user.
  • Fig. 2 shows a plan view of an absorbent body in the diaper according to Fig. 1.
  • Fig. 3 is a section along the line III-III in Fig. 2.
  • Figs. 4 and 5 are corresponding sections but through alternative embodiments of the absorbent body.
  • Fig. 6 shows a plan view of another absorbent body.
  • Fig. 7 is a section along the line VII-VII in Fig. 6.
  • Fig. 8 shows a plan view of still another absorbent body.
  • Fig. 9 is a section along the line IX-IX in Fig. 8.
  • Fig. 10 shows in the form of a stack diagram the momentaneous absorption of an absorbent body (B) according to the invention and another absorbent body (A) .
  • the diaper shown in Fig. 1 comprises a liquid permeable cover layer 1, for example of fibre fabric or perforated plastic film, a liquid impermeable cover layer 2, for example of plastic film or hydrophobic fibre fabric, and an absorbent body ' 3 enclosed between the two cover layers 1 and 2.
  • a liquid permeable cover layer for example of fibre fabric or perforated plastic film
  • a liquid impermeable cover layer 2 for example of plastic film or hydrophobic fibre fabric
  • an absorbent body ' 3 enclosed between the two cover layers 1 and 2.
  • the diaper is intended to enclose the lower portion of the user's torso as a pair of absorbent pants. It has a rear portion 4 intended to face the rear of the user, a front portion intended to face the front of the user, and a narrower crotch portion 6 between the back portion 4 and the front portion 5.
  • tape tabs 7 are arranged adjacent the rear waist edge 8 of the diaper. The tape tabs 7 are fixed when used against the exterior of the front portion 5 of the diaper, close to the front waist edge 9, thus holding the diaper together about the waist of the user.
  • Other fastening means such as Velcro®, hooks and the like are of course also conceivable.
  • the diaper according to Fig. 1 comprises pretensioned elastic means 10, which can consist of a suitable material, such as elastic foam, elastic tape or thread-wound elastic cords.
  • a suitable material such as elastic foam, elastic tape or thread-wound elastic cords.
  • the cords are shown in Fig. 1 in their extended state.
  • the elastic means will contract and thereby form the elastic leg bands of the diaper.
  • the diaper shown in the drawing and described above is in no way a limiting example.
  • the shape of the diaper as well as its other design features can be varied.
  • the fastening means i.e. the tape tabs 7
  • the elastic means 10 can possibly be eliminated.
  • the absorbent body 3 of the diaper is composed of a number of different parts.
  • the absorbent body 3 Essentially directly in front of the assumed wetting area of the diaper, which is the area of the diaper which is first struck by the emitted urine, and which is usually displaced somewhat towards the front portion of the diaper, the absorbent body 3 has a liquid acquisition well 13 which extends into and straight through a surrounding liquid storage layer 12. The well 13 can rapidly receive great amounts of liquid during a short period of time. Beneath the storage layer 12 and the well 13, there is a wicking layer 14 consisting of a fibre material with high liquid dispersability.
  • the fibre material in the well 13 can consist, for example, of cellulose fibres of mechanical pulp, thermo- mechanical pulp, or chemo-thermo-mechanical pulp, so- called CT P. These pulps have relatively coarse fibres with remaining lignin, and therefore they have relatively large pore volume, high wet resiliance and low liquid dispersability. High wet resiliance means that the fluff pulp essentially retains its structure even after wetting. Other fluff pulps with similar properties can be used, for example southern pine or chemically stiffened cellulose fibres, as well as synthetic fibres.
  • cover layer 11 which together with the well 13 forms the liquid acquisition portion of the absorbent body.
  • the cover layer 11 and the well 13 can, as shown, be integrated with each other and thus consist of the same material. They can, however, also consist of different materials, both of which should, however, have the desired properties, such as relatively large pore size, high wet resiliance and low liquid dispersability.
  • the cover layer increases the surface dryness of the absorbent body.
  • the cover layer 11 has, in the embodiment shown in Fig.
  • a thicker rear portion 11a as seen in the position of use of the absorbent body, said thicker portion changing, at a certain distance from the well 13, preferably 5-50 mm, to a thinner portion lib.
  • the thinner portion lib has a higher density than the thicker portion 11a and therefore functions as a liquid barrier prevent ⁇ ing liquid from being spread towards the rear portion 11a of the cover layer 11, which is thus kept dry.
  • An additional advantage is that urine and faeces are kept separate from each other. Mixing of urine and faeces results in the formation of undesirable decomposition products, which can cause skin irritation.
  • the well 13 can, of course, also be completely surrounded by such a barrier 11a of the cover layer 11.
  • the higher density of the portion lib is automatically obtained by compression of the absorbent body, thanks to the reversed thickness ratio of the underlying storage layer 11, presupposing that it has a higher resistance to compression than the cover layer 11.
  • a compressed barrier strip lib next to the well 13 can of course be achieved in other manners.
  • a liquid acquisition layer 19 This should consist of a material with a high liquid receptability and wet resiliance, i.e. it should retain an open fibre structure even in a wet state.
  • suitable materials are synthetic fibre material, e.g. in the form of a wet, polymer form material, cellulose fibres of mechanical pulp, thermo- mechanical pulp, chemo-thermo-mechanical pulp (so-called CTMP) or chemically stiffened cellulose fibres.
  • CTMP chemo-thermo-mechanical pulp
  • the layer 19 can also consist of a material which swells upon wetting, e.g. compressed dry formed sheet pulp.
  • the fibre material in the storage layer 12 should sub ⁇ stantially consist of fluff pulp or other fibre material with relatively small pore volume and high liquid dis ⁇ persability.
  • the fibre material in the wicking layer 14 should consist substantially of chemical fluff pulp, dry-formed sheet pulp according to the above or other fibre material with good dispersion properties.
  • 3 layer 12 should be between 0.1 and 1.0 g/cm , preferably
  • 3 layer 14 should be 0.08-1.0 g/cm , and preferably 0.12-
  • the difference in pore size between the liquid acquisition portion 11, 13, on one hand, and the storage layer 12 and the wicking layer 14, on the other hand, can be achieved by a difference in density between the layers, but even at the same density, but with different types of fibre materials, the desired pore size differ ⁇ ence can be achieved.
  • the liquid acquisition portion 11, 13 contains between 0 and 30%, preferably between 2 and 15% of superabsorbent, computed on the total dry weight of the portion.
  • the superabsorbent in the form of flakes, fibres, granules, powder or the like, is preferably mixed with the fibre material, either substantially evenly distributed or in such a manner that certain portions can contain a higher proportion of superabsorbent than others.
  • the superabsorbent in the liquid acquisition portion 11, 13 should have a high gel strength, so that an open fibre structure is retained in this portion even after wetting, and it is an advantage if it has a relatively low absorption rate.
  • the liquid acquisition portion 11, 13 can of course be completely free of superabsorbents.
  • the storage layer preferably contains super- absorbent, between 2 and 80%, preferably between 10 and 50%, computed on the total dry weight of the layer.
  • the superabsorbent in the form of flakes, fibres, granules, powder or the like is either mixed with the fibre material or applied in the form of one or more layers between the layers of fibres.
  • the superabsorbent is either evenly distributed in the storage layer 12 or with varying concentration across the length and/or thickness of the absorbent body.
  • a storage layer 12 an essentially pure layer of superabsorbent.
  • the superabsorbent in the storage layer 12 has preferably a high absorption capacity under pressure, i.e. a capa ⁇ city to swell essentially uneffected by normally occurring compressive forces, in order to not block or impede the dispersion of liquid. What characterizes these superabsorbents is a high degree of cross-linking, which makes them more difficult to press together in comparison with a gel with a lower degree of cross-linking.
  • the storage layer 12 can, of course, also be completely free of superabsorbent.
  • the wicking layer 14 is preferably free of or contains very small amounts of superabsorbent.
  • the exuded body liquid in this case urine, can be rapid ⁇ ly absorbed by the liquid acquisition portion 11, 13, and be spread either directly or or via the wicking layer 14 onto the second absorption layer 12, where it is stored.
  • the difference in capillary size between the fibre materials in the liquid acquisition portion 11, 13 and the storage layer 12 creates a suction directly from the liquid acquisition portion 11, 13 towards the storage layer 12 or the wicking layer 14.
  • the liquid acquisition portion 11, 13 is drained of liquid and is prepared to receive the next dose of liquid.
  • the storage layer 12 has a capacity for storing several doses of liquid.
  • the well 13 can have varying shape and size. It is important, however, that it has a portion which is located in the assumed wetting area of the absorbent body, i.e. is displaced toward the front portion thereof.
  • the well 13 can extend transversely to the absorbent body out to the longitudinal lateral edges 15, 16, as is shown in Fig. 6, or terminate inside them, as is shown in Fig. 2. In both of the examples, the well 13 is located only in the front portion of the absorbent body and terminates slightly inside its front edge 17. It is, however, conceivable that the well 13 extend up to the front edge and that it even extend somewhat into the rear portion of the absorbent body, possibly to its rear edge 18.
  • the absorbent body has two or more wells. Such an embodiment is shown in
  • Figs. 8 and 9 An advantage of having several small wells 13 instead of one big well is that the wetting area of a diaper may vary depending on whether the user is lying or sitting and it also varies between males and females. With more than one well the risk that the urine will strike the absorbent body outside the well is reduced. A small well is also more rapidly drained from liquid than a big well, which is a further advantage. The wells may also have different sizes in different areas of the absorbent body.
  • the absorbent materials described above have only fibre based structures. It is, however, possible according to the invention, to use other types of porous absorbent materials, such as polymer foams, for example polyester, polyurethane, polyolefines, viscose, etc., or porous polymeric macro structures.
  • porous absorbent materials such as polymer foams, for example polyester, polyurethane, polyolefines, viscose, etc., or porous polymeric macro structures.
  • the desired pore size differ ⁇ ence between the liquid acquisition portion and the storage portion can be achieved simply with such materials as well. Even combinations of fibre and foam materials can be used.
  • pore size is meant here the effective mean pore size which the structure has in dry state.
  • a measuring method for determining and measuring the effective mean pore size in a fibre structure is described in EP-A-0,470,392.
  • An alternative embodiment involves the use as a liquid acquisition portion, especially as a well 13, a hard com ⁇ pressed material, which expands when wetted. Repeated wettings will thus give it an expanded and increased pore volume. Examples of such materials are compressed dry formed sheet pulp, compressed structures of chemically stiffened cellulose fibres and compressed thermal bound fibre structures, where wetting breaks the thermal bonds and the structure is allowed to expand.
  • sample body B was 200 g/m .
  • the sample body B had a well of the same material and density as the upper layer.
  • the well had a cross-sectional area in the form of a circle with the diameter 9 cm.
  • the mean density of the sample body B in the well area was 0.07 g/cm 3, while the mean
  • the storage layer in the sample body A had a surface weight of 600 g/m 2 and a densi.ty of 0.125 g/cm3.
  • the storage layer in the sample body B had a surface weight of 500 g/m 2, a densi.ty of 0.125 g/cm3 and con ⁇ tained 4.6 g of the same superabsorbent as the sample body A, essentially homogeneously mixed into the fluff pulp.
  • the wicking layer in the sample layer B had a surface weight of 250 g/m 2.
  • Fig. 10 in the form of a bar graph.
  • the sample body B had a sub ⁇ stantially better instantaneous absorption than the sample body A, especially at the second, third and forth wetting.
  • the sample body B retained its rapid instant ⁇ aneous absorption during the repeated wettings.
  • the rewetting was measured just before the forth liquid addition by a filter paper being placed over the wetting point and being loaded with a weight of l.l kg (2.8 kPa) for 15 seconds.
  • the filter papers were weighed before and after the loading and the rewetting was noted.
  • the sample body A had a rewetting of 3.5 g and the sample body B had a rewetting of 2.3 g, i.e. there was a lower degree of rewetting for sample body B.
  • the tests show a significally improved instantaneous absorption, especially upon repeated wetting, for the sample body containing the liquid acquisition well according to the invention. Furthermore, it had a lower rewetting. Thus, the invention has achieved an absorbent body with very good absorption properties.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Gas Separation By Absorption (AREA)
  • Nonwoven Fabrics (AREA)
  • Packages (AREA)
EP95905285A 1993-12-29 1994-12-27 Corps absorbant integre dans un article absorbant Expired - Lifetime EP0737056B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9304321A SE508399C2 (sv) 1993-12-29 1993-12-29 Absorptionskropp i ett absorberande alster
SE9304321 1993-12-29
PCT/SE1994/001259 WO1995017870A1 (fr) 1993-12-29 1994-12-27 Corps absorbant integre dans un article absorbant

Publications (3)

Publication Number Publication Date
EP0737056A1 true EP0737056A1 (fr) 1996-10-16
EP0737056B1 EP0737056B1 (fr) 1998-05-27
EP0737056B2 EP0737056B2 (fr) 2003-01-02

Family

ID=20392246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95905285A Expired - Lifetime EP0737056B2 (fr) 1993-12-29 1994-12-27 Corps absorbant integre dans un article absorbant

Country Status (28)

Country Link
US (1) US6037518A (fr)
EP (1) EP0737056B2 (fr)
JP (1) JPH09507136A (fr)
CN (1) CN1139377A (fr)
AT (1) ATE166567T1 (fr)
AU (1) AU682744B2 (fr)
CA (1) CA2176828C (fr)
CO (1) CO4520274A1 (fr)
CZ (1) CZ287252B6 (fr)
DE (1) DE69410637T3 (fr)
DK (1) DK0737056T4 (fr)
ES (1) ES2117849T3 (fr)
FI (1) FI962649A (fr)
GB (1) GB2286126B (fr)
GR (1) GR3027674T3 (fr)
HU (1) HU215807B (fr)
IL (1) IL111958A (fr)
NO (1) NO309359B1 (fr)
NZ (1) NZ278465A (fr)
PE (1) PE46495A1 (fr)
PL (1) PL179716B1 (fr)
SE (1) SE508399C2 (fr)
SK (1) SK282540B6 (fr)
TN (1) TNSN94141A1 (fr)
TR (1) TR28842A (fr)
TW (1) TW478347U (fr)
WO (1) WO1995017870A1 (fr)
ZA (1) ZA9410357B (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9649232B2 (en) 2011-06-10 2017-05-16 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10449097B2 (en) 2012-11-13 2019-10-22 The Procter & Gamble Company Absorbent articles with channels and signals
US10470948B2 (en) 2003-02-12 2019-11-12 The Procter & Gamble Company Thin and dry diaper
US10507144B2 (en) 2015-03-16 2019-12-17 The Procter & Gamble Company Absorbent articles with improved strength
US10517777B2 (en) 2011-06-10 2019-12-31 The Procter & Gamble Company Disposable diaper having first and second absorbent structures and channels
US10543129B2 (en) 2015-05-29 2020-01-28 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US10561546B2 (en) 2011-06-10 2020-02-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US10632029B2 (en) 2015-11-16 2020-04-28 The Procter & Gamble Company Absorbent cores having material free areas
US10639215B2 (en) 2012-12-10 2020-05-05 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US10736795B2 (en) 2015-05-12 2020-08-11 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US10736794B2 (en) 2013-08-27 2020-08-11 The Procter & Gamble Company Absorbent articles with channels
US10842690B2 (en) 2016-04-29 2020-11-24 The Procter & Gamble Company Absorbent core with profiled distribution of absorbent material
US11096839B2 (en) 2005-05-20 2021-08-24 The Procter & Gamble Company Disposable absorbent article having breathable side flaps
US11110011B2 (en) 2011-06-10 2021-09-07 The Procter & Gamble Company Absorbent structure for absorbent articles
US11123240B2 (en) 2016-04-29 2021-09-21 The Procter & Gamble Company Absorbent core with transversal folding lines
US11154437B2 (en) 2013-09-19 2021-10-26 The Procter & Gamble Company Absorbent cores having material free areas
US11207220B2 (en) 2013-09-16 2021-12-28 The Procter & Gamble Company Absorbent articles with channels and signals
US11510829B2 (en) 2014-05-27 2022-11-29 The Procter & Gamble Company Absorbent core with absorbent material pattern
US12016761B2 (en) 2012-12-10 2024-06-25 The Procter & Gamble Company Absorbent article with high absorbent material content

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503778C2 (sv) * 1994-12-30 1996-09-02 Moelnlycke Ab Absorberande alster, i vilket lagringsskiktet är bildat genom delning av en materialbana utefter en undulerad delningskurva
DE69616089T3 (de) * 1996-01-11 2006-04-20 The Procter & Gamble Company, Cincinnati Absorbierende Struktur mit Zonen, die von einer, aus hydrogelbildendes Polymermaterial ununterbrochenen Schicht umgeben sind
US6372952B1 (en) † 1996-03-22 2002-04-16 The Procter & Gamble Company Absorbent components having a sustained acquisition rate capability upon absorbing multiple discharges of aqueous body fluids
CA2273352A1 (fr) * 1996-12-06 1998-06-11 Charles E. Miller Composite stratifie unitaire
SE519601C2 (sv) * 1996-12-17 2003-03-18 Sca Moelnlycke Ab Absorberande struktur för blöja, inkontinensskydd, dambinda eller liknande med hög utnyttjandegrad
US6015935A (en) * 1997-03-27 2000-01-18 The Procter & Gamble Company Absorbent articles comprising a material having a high vertical wicking capacity
US6989005B1 (en) 1997-03-27 2006-01-24 The Procter & Gamble Company Absorbent articles having removable components
US6083210A (en) * 1997-03-27 2000-07-04 The Procter & Gamble Company Absorbent articles providing improved fit when wet
US5906602A (en) * 1997-03-27 1999-05-25 The Procter & Gamble Company Shaped absorbent cores comprising multiple pieces of absorbent material and method for making same
US5827253A (en) * 1997-03-27 1998-10-27 The Procter & Gamble Company Absorbent articles comprising a material having high flux capabilities
US6608236B1 (en) 1997-05-14 2003-08-19 Kimberly-Clark Worldwide, Inc. Stabilized absorbent material and systems for personal care products having controlled placement of visco-elastic fluids
US6172276B1 (en) * 1997-05-14 2001-01-09 Kimberly-Clark Worldwide, Inc. Stabilized absorbent material for improved distribution performance with visco-elastic fluids
SK151999A3 (en) * 1997-05-14 2000-10-09 Kimberly Clark Co Stabilized absorbent material and systems for personal care products having controlled placement of visco-elastic fluids
CO5070597A1 (es) * 1997-10-08 2001-08-28 Kimberly Clark Co Articulo absorbente con estructura laminada absorbente con peso base ramificado y region de capas
CO5090901A1 (es) * 1997-10-08 2001-10-30 Kimberly Clark Co Una estructura absorbente con capas con un peso basico zonificado
US6420626B1 (en) 1999-06-08 2002-07-16 Buckeye Technologies Inc. Unitary fluid acquisition, storage, and wicking material
US6683229B1 (en) * 1998-06-29 2004-01-27 The Procter & Gamble Company Disposable absorbent article storing liquid in a constant pattern
SE513227C2 (sv) * 1998-12-03 2000-08-07 Sca Hygiene Prod Ab Materialstruktur för användning i absorberande alster, och ett absorberande alster innefattande en sådan materialstruktur
US6765125B2 (en) 1999-02-12 2004-07-20 Kimberly-Clark Worldwide, Inc. Distribution—Retention material for personal care products
US6348253B1 (en) 1999-04-03 2002-02-19 Kimberly-Clark Worldwide, Inc. Sanitary pad for variable flow management
US6534149B1 (en) 1999-04-03 2003-03-18 Kimberly-Clark Worldwide, Inc. Intake/distribution material for personal care products
SE514211C2 (sv) * 1999-05-27 2001-01-22 Sca Hygiene Prod Ab Absorberande alster med förbättrad vätskespridning
SE514214C2 (sv) * 1999-05-28 2001-01-22 Sca Hygiene Prod Ab Absorberande alster med förbättrad vätskehanteringsförmåga
SE514213C2 (sv) * 1999-05-28 2001-01-22 Sca Hygiene Prod Ab Absorberande alster med förbättrad vätskehanteringsförmåga och innefattande sidobarriärfickor
AR024567A1 (es) 1999-06-14 2002-10-16 Bki Holding Corp Una estructura absorbente y producto absorbente que utiliza dicha estructura.
US6794557B1 (en) * 1999-07-16 2004-09-21 Associated Hygienic Products Llc Disposable absorbent article employing an absorbent composite and method of making the same
AR027842A1 (es) * 1999-08-23 2003-04-16 Kimberly Clark Co Un articulo absorbente el cual mantiene o mejora la salud de la piel
KR20020080386A (ko) * 2000-01-31 2002-10-23 비케이아이 홀딩 코포레이션 수직방향의 흡수전도능력 및 리웨트능력이 개선된흡수제제품
AU2001252153A1 (en) * 2000-03-02 2001-09-12 Paul Hartmann Ag Single-use absorbent sanitary article
US20030208175A1 (en) * 2000-06-12 2003-11-06 Gross James R. Absorbent products with improved vertical wicking and rewet capability
US20030191442A1 (en) 2000-08-11 2003-10-09 The Procter & Gamble Company Topsheet for contacting hydrous body tissues and absorbent device with such a topsheet
DE10053895C2 (de) * 2000-10-31 2003-04-10 Corovin Gmbh Flüssigkeitsaufnehmendes Wegwerfprodukt mit zusätzlicher Lage
US20020115971A1 (en) * 2000-12-20 2002-08-22 Holmes Lori Tassone Thin, high capacity multi-layer absorbent core
US7411110B2 (en) * 2000-12-20 2008-08-12 Kimberly-Clark Worldwide, Inc. Thin, high capacity absorbent structure and method for producing same
JP3693570B2 (ja) * 2000-12-25 2005-09-07 ユニ・チャーム株式会社 体液吸収性着用物品
US7727211B2 (en) 2001-07-23 2010-06-01 The Procter & Gamble Company Absorbent article having a replaceable absorbent core component having an insertion pocket
US20030120230A1 (en) * 2001-12-20 2003-06-26 Wulz Andrea Susan Absorbent article exhibiting improved fluid distribution
US20030135178A1 (en) * 2002-01-17 2003-07-17 Hansen Ebba A. Absorbent laminate
US20040054343A1 (en) * 2002-09-18 2004-03-18 Barnett Larry N. Horizontal density gradient absorbent system for personal care products
SE0300526D0 (sv) * 2003-02-28 2003-02-28 Sca Hygiene Prod Ab Absorberande alster innefattande en absorberande struktur
US7883497B2 (en) 2003-02-28 2011-02-08 Sca Hygiene Products Ab Absorbent article including an absorbent structure
US7850672B2 (en) * 2003-03-26 2010-12-14 Sca Hygiene Products Ab Absorbent article comprising an absorbent structure
US8211815B2 (en) 2003-06-13 2012-07-03 Kimberly-Clark Worldwide, Inc. Absorbent structure having three-dimensional topography on upper and lower surfaces
JP2005288265A (ja) * 2004-03-31 2005-10-20 Procter & Gamble Co 水性液吸収剤およびその製造方法
DE102004016552A1 (de) * 2004-04-03 2005-10-27 Paul Hartmann Ag Hygieneartikel zum einmaligen Gebrauch
US7799967B2 (en) * 2004-04-08 2010-09-21 Kimberly-Clark Worldwide, Inc. Differentially expanding absorbent structure
CN101257875A (zh) 2005-09-06 2008-09-03 泰科保健集团有限合伙公司 具有微型泵的独立伤口敷料
US8258367B2 (en) 2006-11-29 2012-09-04 The Procter & Gamble Company Disposable absorbent articles having an interior design signal
CA2692241C (fr) 2007-06-18 2012-08-14 Harald Hermann Hundorf Article absorbant jetable a noyau absorbant scelle contenant un materiau polymerique particulaire absorbant distribue de maniere sensiblement continue
US8871123B2 (en) * 2008-08-05 2014-10-28 Johnson & Johnson Ind. E Com. Ltda. Method of making an absorbent core having a plurality of first regions and a second region surrounding each of the first regions
US20100036348A1 (en) * 2008-08-05 2010-02-11 Antonio Carlos Ribeiro De Carvalho Absorbent article including absorbent core having a plurality of first regions and a second region surrounding each of the first regions
US8093448B2 (en) * 2008-08-05 2012-01-10 Johnson & Johnson Ind. E. Com LTDA Absorbent article including absorbent core having a plurality of first regions and a second region surrounding each of the first regions
US7994385B2 (en) * 2008-08-05 2011-08-09 Johnson & Johnson Ind. E Com. Ltda Absorbent article including absorbent core having concentrically arranged absorbent regions
US20100032860A1 (en) * 2008-08-05 2010-02-11 Hernandez Francisco J V Method for making an absorbent core having concentrically arranged absorbent regions
IT1398844B1 (it) * 2009-11-13 2013-03-21 Corman S P A Articolo assorbente con tampone, con struttura matriciale, e metodo per la sua fabbricazione.
EP3508182A1 (fr) 2011-07-14 2019-07-10 Smith & Nephew PLC Pansement pour plaies et procédé de traitement
US9498384B2 (en) * 2011-12-01 2016-11-22 Leigh E. Wood Assembled intermediate comprising staple fiber nonwoven web and articles
US9763837B2 (en) 2011-12-01 2017-09-19 Sca Hygiene Products Ab Absorbent article having fluid flow control member
ES2769298T3 (es) 2012-05-23 2020-06-25 Smith & Nephew Aparatos para terapia de heridas por presión negativa
DK2879636T3 (da) 2012-08-01 2017-06-19 Smith & Nephew Sårbandage
EP2879635A2 (fr) 2012-08-01 2015-06-10 Smith & Nephew PLC Pansement et méthode de traitement
JP2014113273A (ja) * 2012-12-07 2014-06-26 Kao Corp 吸収性物品
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
MX358765B (es) 2013-03-15 2018-09-03 Eam Corp Estructura absorbente con capa de sequedad.
US9375507B2 (en) 2013-04-10 2016-06-28 Evonik Corporation Particulate superabsorbent polymer composition having improved stability
US9302248B2 (en) 2013-04-10 2016-04-05 Evonik Corporation Particulate superabsorbent polymer composition having improved stability
EP3284450B1 (fr) 2013-06-14 2020-11-25 The Procter & Gamble Company Article absorbant et noyau absorbant formant des canaux lorsqu'il est humide
RU2636366C2 (ru) 2013-09-16 2017-11-22 Дзе Проктер Энд Гэмбл Компани Абсорбирующие изделия с каналами и индицирующими элементами
PL2886092T3 (pl) 2013-12-19 2017-03-31 The Procter And Gamble Company Wkłady chłonne z obszarami tworzącymi kanały i zgrzewami osłony c
WO2015131161A2 (fr) 2014-02-28 2015-09-03 Attends Healthcare Products, Inc. Article absorbant avec noyau absorbant plié multicouche
EP3666237B1 (fr) 2014-06-18 2023-11-01 Smith & Nephew plc Pansement
US10806643B2 (en) 2015-02-03 2020-10-20 Eam Corporation Absorbent laminate with multiple substrates
WO2016149251A1 (fr) 2015-03-16 2016-09-22 The Procter & Gamble Company Articles absorbants à âmes améliorées
CN108348388B (zh) * 2015-11-04 2021-06-25 宝洁公司 包括异质块体的泡沫吸收芯结构
GB2555584B (en) 2016-10-28 2020-05-27 Smith & Nephew Multi-layered wound dressing and method of manufacture
CN106510971A (zh) * 2016-10-28 2017-03-22 德佳信科技(天津)有限公司 复合芯体及使用该复合芯体的一次性护理卫生用品
US11278457B2 (en) 2017-02-09 2022-03-22 Hill-Rom Services, Inc. Incontinence detection optimization using directional wicking
CA3101920A1 (fr) 2018-05-28 2019-12-05 Attends Healthcare Products, Inc. Stratifie a couche de siccite pour articles absorbants

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897784A (en) * 1974-07-24 1975-08-05 Colgate Palmolive Co Sanitary napkin
US4027672A (en) * 1975-12-29 1977-06-07 Colgate-Palmolive Company Absorbent article with improved pad and method
FR2354753A1 (fr) * 1976-06-14 1978-01-13 Franco Pierre Garniture periodique externe a jeter
US4449979A (en) * 1980-08-26 1984-05-22 Johnson & Johnson Baby Products Company Absorbent structure having gradient densities
US4333462A (en) * 1980-11-17 1982-06-08 Johnson & Johnson Baby Products Company Absorbent structure containing superabsorbent
US4333463A (en) * 1980-11-17 1982-06-08 Johnson & Johnson Baby Products Company Absorbent structure containing superabsorbent
US4501586A (en) * 1980-11-17 1985-02-26 Personal Products Company Absorbent structure with reservoir
US4413996A (en) * 1981-07-14 1983-11-08 Taylor Kevin D Diaper with liquid retaining chamber
US4397644A (en) † 1982-02-04 1983-08-09 Kimberly-Clark Corporation Sanitary napkin with improved comfort
GB2124907B (en) * 1982-08-07 1986-05-14 Smith & Nephew Ass Absorbent device for bodily liquids
US4531945A (en) * 1983-10-31 1985-07-30 Kimberly-Clark Corporation Multi layer sanitary appliance
US4834735A (en) * 1986-07-18 1989-05-30 The Proctor & Gamble Company High density absorbent members having lower density and lower basis weight acquisition zones
CA1306081C (fr) * 1987-11-20 1992-08-11 Earle Harry Sherrod Tampon pour l'absorption d'exudats humains avec transfert de liquide par membrane en forme de i et element de renforcement
US4973325A (en) * 1987-11-20 1990-11-27 Kimberly-Clark Corporation Absorbent article having a fluid transfer member
US4988344A (en) † 1988-05-24 1991-01-29 The Procter & Gamble Company Absorbent articles with multiple layer absorbent layers
US5134007A (en) * 1988-05-24 1992-07-28 The Procter & Gamble Company Multiple layer absorbent cores for absorbent articles
SE461440B (sv) * 1988-06-29 1990-02-19 Moelnlycke Ab Absorberande alster
SE462622B (sv) † 1988-11-17 1990-07-30 Sca Pulp Ab Banformad laettdefibrerbar pappersprodukt
US4994037A (en) † 1990-07-09 1991-02-19 Kimberly-Clark Corporation Absorbent structure designed for absorbing body fluids
US5037409A (en) * 1990-07-12 1991-08-06 Kimberly-Clark Corporation Absorbent article having a hydrophilic flow-modulating layer
ATE119382T1 (de) * 1991-01-03 1995-03-15 Procter & Gamble Absorbierender artikel mit einem schnell aufnehmenden absorbtionskern aus mehreren lagen.
SE468744B (sv) * 1991-01-29 1993-03-15 Moelnlycke Ab Absorptionskropp foer absorberande alster innefattande minst tvaa olika fluffmassor samt bloeja innefattande absorptionskroppen
US5330457A (en) * 1991-09-30 1994-07-19 Hercules Incorporated Enhanced core utilization in absorbent products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9517870A1 *

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10470948B2 (en) 2003-02-12 2019-11-12 The Procter & Gamble Company Thin and dry diaper
US11793682B2 (en) 2003-02-12 2023-10-24 The Procter & Gamble Company Thin and dry diaper
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US10660800B2 (en) 2003-02-12 2020-05-26 The Procter & Gamble Company Comfortable diaper
US11234868B2 (en) 2003-02-12 2022-02-01 The Procter & Gamble Company Comfortable diaper
US11135096B2 (en) 2003-02-12 2021-10-05 The Procter & Gamble Company Comfortable diaper
US11096839B2 (en) 2005-05-20 2021-08-24 The Procter & Gamble Company Disposable absorbent article having breathable side flaps
US11779495B2 (en) 2005-05-20 2023-10-10 The Procter And Gamble Company Disposable absorbent article having breathable side flaps
US11602467B2 (en) 2011-06-10 2023-03-14 The Procter & Gamble Company Absorbent structure for absorbent articles
US10517777B2 (en) 2011-06-10 2019-12-31 The Procter & Gamble Company Disposable diaper having first and second absorbent structures and channels
US9649232B2 (en) 2011-06-10 2017-05-16 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US10561546B2 (en) 2011-06-10 2020-02-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US10893987B2 (en) 2011-06-10 2021-01-19 The Procter & Gamble Company Disposable diapers with main channels and secondary channels
US11135105B2 (en) 2011-06-10 2021-10-05 The Procter & Gamble Company Absorbent structure for absorbent articles
US11110011B2 (en) 2011-06-10 2021-09-07 The Procter & Gamble Company Absorbent structure for absorbent articles
US10449097B2 (en) 2012-11-13 2019-10-22 The Procter & Gamble Company Absorbent articles with channels and signals
US12016761B2 (en) 2012-12-10 2024-06-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US10639215B2 (en) 2012-12-10 2020-05-05 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US10736794B2 (en) 2013-08-27 2020-08-11 The Procter & Gamble Company Absorbent articles with channels
US10335324B2 (en) 2013-08-27 2019-07-02 The Procter & Gamble Company Absorbent articles with channels
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US10765567B2 (en) 2013-08-27 2020-09-08 The Procter & Gamble Company Absorbent articles with channels
US11759376B2 (en) 2013-08-27 2023-09-19 The Procter & Gamble Company Absorbent articles with channels
US11612523B2 (en) 2013-08-27 2023-03-28 The Procter & Gamble Company Absorbent articles with channels
US11406544B2 (en) 2013-08-27 2022-08-09 The Procter & Gamble Company Absorbent articles with channels
US11957551B2 (en) 2013-09-16 2024-04-16 The Procter & Gamble Company Absorbent articles with channels and signals
US11207220B2 (en) 2013-09-16 2021-12-28 The Procter & Gamble Company Absorbent articles with channels and signals
US11944526B2 (en) 2013-09-19 2024-04-02 The Procter & Gamble Company Absorbent cores having material free areas
US11154437B2 (en) 2013-09-19 2021-10-26 The Procter & Gamble Company Absorbent cores having material free areas
US11191679B2 (en) 2013-12-19 2021-12-07 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10675187B2 (en) 2013-12-19 2020-06-09 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10828206B2 (en) 2013-12-19 2020-11-10 Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US11510829B2 (en) 2014-05-27 2022-11-29 The Procter & Gamble Company Absorbent core with absorbent material pattern
US10507144B2 (en) 2015-03-16 2019-12-17 The Procter & Gamble Company Absorbent articles with improved strength
US11918445B2 (en) 2015-05-12 2024-03-05 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US10736795B2 (en) 2015-05-12 2020-08-11 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US10543129B2 (en) 2015-05-29 2020-01-28 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US11497657B2 (en) 2015-05-29 2022-11-15 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US10632029B2 (en) 2015-11-16 2020-04-28 The Procter & Gamble Company Absorbent cores having material free areas
US11123240B2 (en) 2016-04-29 2021-09-21 The Procter & Gamble Company Absorbent core with transversal folding lines
US10842690B2 (en) 2016-04-29 2020-11-24 The Procter & Gamble Company Absorbent core with profiled distribution of absorbent material

Also Published As

Publication number Publication date
CZ287252B6 (en) 2000-10-11
DE69410637T2 (de) 1998-11-26
PE46495A1 (es) 1996-01-29
TR28842A (tr) 1997-07-17
AU1395495A (en) 1995-07-17
HUT77205A (hu) 1998-03-02
EP0737056B2 (fr) 2003-01-02
GB2286126A (en) 1995-08-09
GB2286126B (en) 1997-10-15
HU9601800D0 (en) 1996-09-30
CA2176828A1 (fr) 1995-07-06
TW478347U (en) 2002-03-01
FI962649A0 (fi) 1996-06-26
FI962649A (fi) 1996-06-26
ATE166567T1 (de) 1998-06-15
IL111958A0 (en) 1995-03-15
DE69410637T3 (de) 2004-03-25
US6037518A (en) 2000-03-14
SK85196A3 (en) 1997-10-08
DE69410637D1 (de) 1998-07-02
NZ278465A (en) 1997-12-19
NO309359B1 (no) 2001-01-22
SE9304321D0 (sv) 1993-12-29
TNSN94141A1 (fr) 1995-09-21
EP0737056B1 (fr) 1998-05-27
NO962673L (no) 1996-06-24
SE508399C2 (sv) 1998-10-05
DK0737056T3 (da) 1998-10-12
CA2176828C (fr) 2004-11-30
AU682744B2 (en) 1997-10-16
CZ189496A3 (en) 1996-10-16
WO1995017870A1 (fr) 1995-07-06
GB9425237D0 (en) 1995-02-08
CO4520274A1 (es) 1997-10-15
PL179716B1 (pl) 2000-10-31
ZA9410357B (en) 1995-09-05
JPH09507136A (ja) 1997-07-22
IL111958A (en) 1998-03-10
PL314954A1 (en) 1996-09-30
ES2117849T3 (es) 1998-08-16
GR3027674T3 (en) 1998-11-30
CN1139377A (zh) 1997-01-01
DK0737056T4 (da) 2003-03-17
SE9304321L (sv) 1995-06-30
SK282540B6 (sk) 2002-10-08
HU215807B (hu) 1999-02-01
NO962673D0 (no) 1996-06-24

Similar Documents

Publication Publication Date Title
EP0737056B1 (fr) Corps absorbant integre dans un article absorbant
US5961506A (en) Absorbent body in an absorbent product
EP0929279B1 (fr) Corps absorbants d'articles absorbants aux proprietes ameliorees de recueil de liquides
US6020536A (en) Absorbent body for absorbent articles
US5741241A (en) Absorbent body for an absorbent article
CA2117342C (fr) Element d'absorption pour article absorbant
PL180319B1 (pl) Artykul absorbcyjny, zwlaszcza podpaska, pielucha, pielucho-majtki PL
MXPA99004366A (en) Absorbent structure for use in an absorbent article

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960603

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GR IE IT LI NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19970609

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCA MOELNLYCKE AB

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GR IE IT LI NL PT SE

REF Corresponds to:

Ref document number: 166567

Country of ref document: AT

Date of ref document: 19980615

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69410637

Country of ref document: DE

Date of ref document: 19980702

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2117849

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19980819

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAV Examination of admissibility of opposition

Free format text: ORIGINAL CODE: EPIDOS OPEX

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: THE PROCTER & GAMBLE COMPANY

Effective date: 19990220

26 Opposition filed

Opponent name: KIMBERLY-CLARK WORLDWIDE, INC.

Effective date: 19990301

Opponent name: THE PROCTER & GAMBLE COMPANY

Effective date: 19990220

NLR1 Nl: opposition has been filed with the epo

Opponent name: THE PROCTER & GAMBLE COMPANY

NLR1 Nl: opposition has been filed with the epo

Opponent name: KIMBERLY-CLARK WORLDWIDE, INC.

Opponent name: THE PROCTER & GAMBLE COMPANY

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SCA HYGIENE PRODUCTS AB

R26 Opposition filed (corrected)

Opponent name: THE PROCTER & GAMBLE COMPANY * 19990301 KIMBERLY-C

Effective date: 19990220

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: SCA HYGIENE PRODUCTS AB

NLR1 Nl: opposition has been filed with the epo

Opponent name: KIMBERLY-CLARK WORLDWIDE, INC.

Opponent name: THE PROCTER & GAMBLE COMPANY

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20021220

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20021223

Year of fee payment: 9

Ref country code: GR

Payment date: 20021223

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20021224

Year of fee payment: 9

27A Patent maintained in amended form

Effective date: 20030102

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE DK ES FR GR IE IT LI NL PT SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

NLR2 Nl: decision of opposition

Effective date: 20030102

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SCA HYGIENE PRODUCTS AB

Free format text: SCA MOELNLYCKE AB##405 03 GOETEBORG (SE) -TRANSFER TO- SCA HYGIENE PRODUCTS AB##405 03 GOETEBORG (SE)

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20030404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030413

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: PAT. BUL. 11/1998: CORR.: SCA HYGIENE PRODUCTS AB

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030630

REG Reference to a national code

Ref country code: PT

Ref legal event code: MP4A

Effective date: 20030402

ET3 Fr: translation filed ** decision concerning opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20031219

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20031222

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031229

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20081224

Year of fee payment: 15

Ref country code: DK

Payment date: 20081223

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20081220

Year of fee payment: 15

Ref country code: SE

Payment date: 20081219

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20090402

Year of fee payment: 15

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20100114

Year of fee payment: 16

BERE Be: lapsed

Owner name: *SCA HYGIENE PRODUCTS A.B.

Effective date: 20091231

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20100701

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100701

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101227

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120703

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69410637

Country of ref document: DE

Effective date: 20120703